1017 lines
22 KiB
C
1017 lines
22 KiB
C
/*
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* tps65910.c -- TI tps65910
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*
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* Copyright 2010 Texas Instruments Inc.
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*
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* Author: Graeme Gregory <gg@slimlogic.co.uk>
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* Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/mfd/tps65910.h>
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#define TPS65910_SUPPLY_STATE_ENABLED 0x1
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/* supported VIO voltages in milivolts */
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static const u16 VIO_VSEL_table[] = {
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1500, 1800, 2500, 3300,
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};
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/* VSEL tables for TPS65910 specific LDOs and dcdc's */
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/* supported VDD3 voltages in milivolts */
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static const u16 VDD3_VSEL_table[] = {
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5000,
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};
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/* supported VDIG1 voltages in milivolts */
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static const u16 VDIG1_VSEL_table[] = {
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1200, 1500, 1800, 2700,
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};
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/* supported VDIG2 voltages in milivolts */
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static const u16 VDIG2_VSEL_table[] = {
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1000, 1100, 1200, 1800,
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};
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/* supported VPLL voltages in milivolts */
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static const u16 VPLL_VSEL_table[] = {
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1000, 1100, 1800, 2500,
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};
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/* supported VDAC voltages in milivolts */
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static const u16 VDAC_VSEL_table[] = {
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1800, 2600, 2800, 2850,
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};
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/* supported VAUX1 voltages in milivolts */
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static const u16 VAUX1_VSEL_table[] = {
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1800, 2500, 2800, 2850,
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};
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/* supported VAUX2 voltages in milivolts */
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static const u16 VAUX2_VSEL_table[] = {
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1800, 2800, 2900, 3300,
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};
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/* supported VAUX33 voltages in milivolts */
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static const u16 VAUX33_VSEL_table[] = {
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1800, 2000, 2800, 3300,
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};
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/* supported VMMC voltages in milivolts */
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static const u16 VMMC_VSEL_table[] = {
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1800, 2800, 3000, 3300,
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};
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struct tps_info {
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const char *name;
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unsigned min_uV;
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unsigned max_uV;
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u8 table_len;
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const u16 *table;
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};
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static struct tps_info tps65910_regs[] = {
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{
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.name = "VRTC",
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},
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{
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.name = "VIO",
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.min_uV = 1500000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VIO_VSEL_table),
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.table = VIO_VSEL_table,
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},
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{
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.name = "VDD1",
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.min_uV = 600000,
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.max_uV = 4500000,
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},
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{
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.name = "VDD2",
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.min_uV = 600000,
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.max_uV = 4500000,
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},
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{
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.name = "VDD3",
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.min_uV = 5000000,
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.max_uV = 5000000,
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.table_len = ARRAY_SIZE(VDD3_VSEL_table),
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.table = VDD3_VSEL_table,
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},
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{
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.name = "VDIG1",
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.min_uV = 1200000,
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.max_uV = 2700000,
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.table_len = ARRAY_SIZE(VDIG1_VSEL_table),
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.table = VDIG1_VSEL_table,
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},
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{
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.name = "VDIG2",
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.min_uV = 1000000,
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.max_uV = 1800000,
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.table_len = ARRAY_SIZE(VDIG2_VSEL_table),
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.table = VDIG2_VSEL_table,
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},
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{
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.name = "VPLL",
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.min_uV = 1000000,
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.max_uV = 2500000,
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.table_len = ARRAY_SIZE(VPLL_VSEL_table),
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.table = VPLL_VSEL_table,
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},
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{
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.name = "VDAC",
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.min_uV = 1800000,
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.max_uV = 2850000,
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.table_len = ARRAY_SIZE(VDAC_VSEL_table),
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.table = VDAC_VSEL_table,
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},
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{
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.name = "VAUX1",
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.min_uV = 1800000,
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.max_uV = 2850000,
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.table_len = ARRAY_SIZE(VAUX1_VSEL_table),
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.table = VAUX1_VSEL_table,
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},
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{
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.name = "VAUX2",
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.min_uV = 1800000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VAUX2_VSEL_table),
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.table = VAUX2_VSEL_table,
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},
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{
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.name = "VAUX33",
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.min_uV = 1800000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VAUX33_VSEL_table),
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.table = VAUX33_VSEL_table,
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},
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{
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.name = "VMMC",
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.min_uV = 1800000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VMMC_VSEL_table),
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.table = VMMC_VSEL_table,
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},
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};
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static struct tps_info tps65911_regs[] = {
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{
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.name = "VIO",
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.min_uV = 1500000,
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.max_uV = 3300000,
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.table_len = ARRAY_SIZE(VIO_VSEL_table),
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.table = VIO_VSEL_table,
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},
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{
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.name = "VDD1",
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.min_uV = 600000,
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.max_uV = 4500000,
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},
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{
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.name = "VDD2",
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.min_uV = 600000,
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.max_uV = 4500000,
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},
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{
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.name = "VDDCTRL",
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.min_uV = 600000,
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.max_uV = 1400000,
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},
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{
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.name = "LDO1",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO2",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO3",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO4",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO5",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO6",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO7",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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{
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.name = "LDO8",
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.min_uV = 1000000,
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.max_uV = 3300000,
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},
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};
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struct tps65910_reg {
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struct regulator_desc *desc;
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struct tps65910 *mfd;
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struct regulator_dev **rdev;
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struct tps_info **info;
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struct mutex mutex;
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int num_regulators;
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int mode;
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int (*get_ctrl_reg)(int);
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};
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static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
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{
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u8 val;
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int err;
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err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
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if (err)
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return err;
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return val;
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}
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static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
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{
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return pmic->mfd->write(pmic->mfd, reg, 1, &val);
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}
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static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
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u8 set_mask, u8 clear_mask)
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{
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int err, data;
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mutex_lock(&pmic->mutex);
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data = tps65910_read(pmic, reg);
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if (data < 0) {
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dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
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err = data;
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goto out;
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}
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data &= ~clear_mask;
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data |= set_mask;
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err = tps65910_write(pmic, reg, data);
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if (err)
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dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
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out:
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mutex_unlock(&pmic->mutex);
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return err;
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}
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static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
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{
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int data;
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mutex_lock(&pmic->mutex);
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data = tps65910_read(pmic, reg);
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if (data < 0)
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dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
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mutex_unlock(&pmic->mutex);
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return data;
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}
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static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
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{
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int err;
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mutex_lock(&pmic->mutex);
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err = tps65910_write(pmic, reg, val);
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if (err < 0)
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dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
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mutex_unlock(&pmic->mutex);
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return err;
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}
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static int tps65910_get_ctrl_register(int id)
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{
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switch (id) {
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case TPS65910_REG_VRTC:
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return TPS65910_VRTC;
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case TPS65910_REG_VIO:
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return TPS65910_VIO;
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case TPS65910_REG_VDD1:
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return TPS65910_VDD1;
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case TPS65910_REG_VDD2:
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return TPS65910_VDD2;
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case TPS65910_REG_VDD3:
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return TPS65910_VDD3;
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case TPS65910_REG_VDIG1:
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return TPS65910_VDIG1;
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case TPS65910_REG_VDIG2:
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return TPS65910_VDIG2;
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case TPS65910_REG_VPLL:
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return TPS65910_VPLL;
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case TPS65910_REG_VDAC:
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return TPS65910_VDAC;
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case TPS65910_REG_VAUX1:
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return TPS65910_VAUX1;
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case TPS65910_REG_VAUX2:
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return TPS65910_VAUX2;
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case TPS65910_REG_VAUX33:
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return TPS65910_VAUX33;
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case TPS65910_REG_VMMC:
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return TPS65910_VMMC;
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default:
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return -EINVAL;
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}
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}
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static int tps65911_get_ctrl_register(int id)
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{
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switch (id) {
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case TPS65910_REG_VRTC:
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return TPS65910_VRTC;
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case TPS65910_REG_VIO:
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return TPS65910_VIO;
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case TPS65910_REG_VDD1:
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return TPS65910_VDD1;
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case TPS65910_REG_VDD2:
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return TPS65910_VDD2;
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case TPS65911_REG_VDDCTRL:
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return TPS65911_VDDCTRL;
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case TPS65911_REG_LDO1:
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return TPS65911_LDO1;
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case TPS65911_REG_LDO2:
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return TPS65911_LDO2;
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case TPS65911_REG_LDO3:
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return TPS65911_LDO3;
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case TPS65911_REG_LDO4:
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return TPS65911_LDO4;
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case TPS65911_REG_LDO5:
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return TPS65911_LDO5;
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case TPS65911_REG_LDO6:
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return TPS65911_LDO6;
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case TPS65911_REG_LDO7:
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return TPS65911_LDO7;
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case TPS65911_REG_LDO8:
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return TPS65911_LDO8;
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default:
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return -EINVAL;
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}
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}
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static int tps65910_is_enabled(struct regulator_dev *dev)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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int reg, value, id = rdev_get_id(dev);
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reg = pmic->get_ctrl_reg(id);
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if (reg < 0)
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return reg;
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value = tps65910_reg_read(pmic, reg);
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if (value < 0)
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return value;
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return value & TPS65910_SUPPLY_STATE_ENABLED;
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}
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static int tps65910_enable(struct regulator_dev *dev)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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struct tps65910 *mfd = pmic->mfd;
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int reg, id = rdev_get_id(dev);
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reg = pmic->get_ctrl_reg(id);
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if (reg < 0)
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return reg;
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return tps65910_set_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
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}
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static int tps65910_disable(struct regulator_dev *dev)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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struct tps65910 *mfd = pmic->mfd;
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int reg, id = rdev_get_id(dev);
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reg = pmic->get_ctrl_reg(id);
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if (reg < 0)
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return reg;
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return tps65910_clear_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
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}
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static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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struct tps65910 *mfd = pmic->mfd;
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int reg, value, id = rdev_get_id(dev);
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reg = pmic->get_ctrl_reg(id);
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if (reg < 0)
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return reg;
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switch (mode) {
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case REGULATOR_MODE_NORMAL:
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return tps65910_modify_bits(pmic, reg, LDO_ST_ON_BIT,
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LDO_ST_MODE_BIT);
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case REGULATOR_MODE_IDLE:
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value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
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return tps65910_set_bits(mfd, reg, value);
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case REGULATOR_MODE_STANDBY:
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return tps65910_clear_bits(mfd, reg, LDO_ST_ON_BIT);
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}
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return -EINVAL;
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}
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static unsigned int tps65910_get_mode(struct regulator_dev *dev)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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int reg, value, id = rdev_get_id(dev);
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reg = pmic->get_ctrl_reg(id);
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if (reg < 0)
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return reg;
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value = tps65910_reg_read(pmic, reg);
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if (value < 0)
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return value;
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if (value & LDO_ST_ON_BIT)
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return REGULATOR_MODE_STANDBY;
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else if (value & LDO_ST_MODE_BIT)
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return REGULATOR_MODE_IDLE;
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else
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return REGULATOR_MODE_NORMAL;
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}
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static int tps65910_get_voltage_dcdc(struct regulator_dev *dev)
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{
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struct tps65910_reg *pmic = rdev_get_drvdata(dev);
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int id = rdev_get_id(dev), voltage = 0;
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int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
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switch (id) {
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case TPS65910_REG_VDD1:
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opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
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mult = tps65910_reg_read(pmic, TPS65910_VDD1);
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mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
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srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
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sr = opvsel & VDD1_OP_CMD_MASK;
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opvsel &= VDD1_OP_SEL_MASK;
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srvsel &= VDD1_SR_SEL_MASK;
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vselmax = 75;
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break;
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case TPS65910_REG_VDD2:
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opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
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mult = tps65910_reg_read(pmic, TPS65910_VDD2);
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mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
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srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
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sr = opvsel & VDD2_OP_CMD_MASK;
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opvsel &= VDD2_OP_SEL_MASK;
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srvsel &= VDD2_SR_SEL_MASK;
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vselmax = 75;
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break;
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case TPS65911_REG_VDDCTRL:
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opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP);
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srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR);
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sr = opvsel & VDDCTRL_OP_CMD_MASK;
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opvsel &= VDDCTRL_OP_SEL_MASK;
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srvsel &= VDDCTRL_SR_SEL_MASK;
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|
vselmax = 64;
|
|
break;
|
|
}
|
|
|
|
/* multiplier 0 == 1 but 2,3 normal */
|
|
if (!mult)
|
|
mult=1;
|
|
|
|
if (sr) {
|
|
/* normalise to valid range */
|
|
if (srvsel < 3)
|
|
srvsel = 3;
|
|
if (srvsel > vselmax)
|
|
srvsel = vselmax;
|
|
srvsel -= 3;
|
|
|
|
voltage = (srvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100;
|
|
} else {
|
|
|
|
/* normalise to valid range*/
|
|
if (opvsel < 3)
|
|
opvsel = 3;
|
|
if (opvsel > vselmax)
|
|
opvsel = vselmax;
|
|
opvsel -= 3;
|
|
|
|
voltage = (opvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100;
|
|
}
|
|
|
|
voltage *= mult;
|
|
|
|
return voltage;
|
|
}
|
|
|
|
static int tps65910_get_voltage(struct regulator_dev *dev)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int reg, value, id = rdev_get_id(dev), voltage = 0;
|
|
|
|
reg = pmic->get_ctrl_reg(id);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
value = tps65910_reg_read(pmic, reg);
|
|
if (value < 0)
|
|
return value;
|
|
|
|
switch (id) {
|
|
case TPS65910_REG_VIO:
|
|
case TPS65910_REG_VDIG1:
|
|
case TPS65910_REG_VDIG2:
|
|
case TPS65910_REG_VPLL:
|
|
case TPS65910_REG_VDAC:
|
|
case TPS65910_REG_VAUX1:
|
|
case TPS65910_REG_VAUX2:
|
|
case TPS65910_REG_VAUX33:
|
|
case TPS65910_REG_VMMC:
|
|
value &= LDO_SEL_MASK;
|
|
value >>= LDO_SEL_SHIFT;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
voltage = pmic->info[id]->table[value] * 1000;
|
|
|
|
return voltage;
|
|
}
|
|
|
|
static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
|
|
{
|
|
return 5 * 1000 * 1000;
|
|
}
|
|
|
|
static int tps65911_get_voltage(struct regulator_dev *dev)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int step_mv, id = rdev_get_id(dev);
|
|
u8 value, reg;
|
|
|
|
reg = pmic->get_ctrl_reg(id);
|
|
|
|
value = tps65910_reg_read(pmic, reg);
|
|
|
|
switch (id) {
|
|
case TPS65911_REG_LDO1:
|
|
case TPS65911_REG_LDO2:
|
|
case TPS65911_REG_LDO4:
|
|
value &= LDO1_SEL_MASK;
|
|
value >>= LDO_SEL_SHIFT;
|
|
/* The first 5 values of the selector correspond to 1V */
|
|
if (value < 5)
|
|
value = 0;
|
|
else
|
|
value -= 4;
|
|
|
|
step_mv = 50;
|
|
break;
|
|
case TPS65911_REG_LDO3:
|
|
case TPS65911_REG_LDO5:
|
|
case TPS65911_REG_LDO6:
|
|
case TPS65911_REG_LDO7:
|
|
case TPS65911_REG_LDO8:
|
|
value &= LDO3_SEL_MASK;
|
|
value >>= LDO_SEL_SHIFT;
|
|
/* The first 3 values of the selector correspond to 1V */
|
|
if (value < 3)
|
|
value = 0;
|
|
else
|
|
value -= 2;
|
|
|
|
step_mv = 100;
|
|
break;
|
|
case TPS65910_REG_VIO:
|
|
return pmic->info[id]->table[value] * 1000;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return (LDO_MIN_VOLT + value * step_mv) * 1000;
|
|
}
|
|
|
|
static int tps65910_set_voltage_dcdc(struct regulator_dev *dev,
|
|
unsigned selector)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int id = rdev_get_id(dev), vsel;
|
|
int dcdc_mult = 0;
|
|
|
|
switch (id) {
|
|
case TPS65910_REG_VDD1:
|
|
dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
|
|
if (dcdc_mult == 1)
|
|
dcdc_mult--;
|
|
vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
|
|
|
|
tps65910_modify_bits(pmic, TPS65910_VDD1,
|
|
(dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
|
|
VDD1_VGAIN_SEL_MASK);
|
|
tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
|
|
break;
|
|
case TPS65910_REG_VDD2:
|
|
dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
|
|
if (dcdc_mult == 1)
|
|
dcdc_mult--;
|
|
vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
|
|
|
|
tps65910_modify_bits(pmic, TPS65910_VDD2,
|
|
(dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
|
|
VDD1_VGAIN_SEL_MASK);
|
|
tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
|
|
break;
|
|
case TPS65911_REG_VDDCTRL:
|
|
vsel = selector;
|
|
tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tps65910_set_voltage(struct regulator_dev *dev, unsigned selector)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int reg, id = rdev_get_id(dev);
|
|
|
|
reg = pmic->get_ctrl_reg(id);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
switch (id) {
|
|
case TPS65910_REG_VIO:
|
|
case TPS65910_REG_VDIG1:
|
|
case TPS65910_REG_VDIG2:
|
|
case TPS65910_REG_VPLL:
|
|
case TPS65910_REG_VDAC:
|
|
case TPS65910_REG_VAUX1:
|
|
case TPS65910_REG_VAUX2:
|
|
case TPS65910_REG_VAUX33:
|
|
case TPS65910_REG_VMMC:
|
|
return tps65910_modify_bits(pmic, reg,
|
|
(selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int tps65911_set_voltage(struct regulator_dev *dev, unsigned selector)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int reg, id = rdev_get_id(dev);
|
|
|
|
reg = pmic->get_ctrl_reg(id);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
switch (id) {
|
|
case TPS65911_REG_LDO1:
|
|
case TPS65911_REG_LDO2:
|
|
case TPS65911_REG_LDO4:
|
|
return tps65910_modify_bits(pmic, reg,
|
|
(selector << LDO_SEL_SHIFT), LDO1_SEL_MASK);
|
|
case TPS65911_REG_LDO3:
|
|
case TPS65911_REG_LDO5:
|
|
case TPS65911_REG_LDO6:
|
|
case TPS65911_REG_LDO7:
|
|
case TPS65911_REG_LDO8:
|
|
case TPS65910_REG_VIO:
|
|
return tps65910_modify_bits(pmic, reg,
|
|
(selector << LDO_SEL_SHIFT), LDO3_SEL_MASK);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
|
|
unsigned selector)
|
|
{
|
|
int volt, mult = 1, id = rdev_get_id(dev);
|
|
|
|
switch (id) {
|
|
case TPS65910_REG_VDD1:
|
|
case TPS65910_REG_VDD2:
|
|
mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
|
|
volt = VDD1_2_MIN_VOLT +
|
|
(selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
|
|
break;
|
|
case TPS65911_REG_VDDCTRL:
|
|
volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
|
|
break;
|
|
default:
|
|
BUG();
|
|
return -EINVAL;
|
|
}
|
|
|
|
return volt * 100 * mult;
|
|
}
|
|
|
|
static int tps65910_list_voltage(struct regulator_dev *dev,
|
|
unsigned selector)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int id = rdev_get_id(dev), voltage;
|
|
|
|
if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
|
|
return -EINVAL;
|
|
|
|
if (selector >= pmic->info[id]->table_len)
|
|
return -EINVAL;
|
|
else
|
|
voltage = pmic->info[id]->table[selector] * 1000;
|
|
|
|
return voltage;
|
|
}
|
|
|
|
static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
|
|
{
|
|
struct tps65910_reg *pmic = rdev_get_drvdata(dev);
|
|
int step_mv = 0, id = rdev_get_id(dev);
|
|
|
|
switch(id) {
|
|
case TPS65911_REG_LDO1:
|
|
case TPS65911_REG_LDO2:
|
|
case TPS65911_REG_LDO4:
|
|
/* The first 5 values of the selector correspond to 1V */
|
|
if (selector < 5)
|
|
selector = 0;
|
|
else
|
|
selector -= 4;
|
|
|
|
step_mv = 50;
|
|
break;
|
|
case TPS65911_REG_LDO3:
|
|
case TPS65911_REG_LDO5:
|
|
case TPS65911_REG_LDO6:
|
|
case TPS65911_REG_LDO7:
|
|
case TPS65911_REG_LDO8:
|
|
/* The first 3 values of the selector correspond to 1V */
|
|
if (selector < 3)
|
|
selector = 0;
|
|
else
|
|
selector -= 2;
|
|
|
|
step_mv = 100;
|
|
break;
|
|
case TPS65910_REG_VIO:
|
|
return pmic->info[id]->table[selector] * 1000;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return (LDO_MIN_VOLT + selector * step_mv) * 1000;
|
|
}
|
|
|
|
/* Regulator ops (except VRTC) */
|
|
static struct regulator_ops tps65910_ops_dcdc = {
|
|
.is_enabled = tps65910_is_enabled,
|
|
.enable = tps65910_enable,
|
|
.disable = tps65910_disable,
|
|
.set_mode = tps65910_set_mode,
|
|
.get_mode = tps65910_get_mode,
|
|
.get_voltage = tps65910_get_voltage_dcdc,
|
|
.set_voltage_sel = tps65910_set_voltage_dcdc,
|
|
.list_voltage = tps65910_list_voltage_dcdc,
|
|
};
|
|
|
|
static struct regulator_ops tps65910_ops_vdd3 = {
|
|
.is_enabled = tps65910_is_enabled,
|
|
.enable = tps65910_enable,
|
|
.disable = tps65910_disable,
|
|
.set_mode = tps65910_set_mode,
|
|
.get_mode = tps65910_get_mode,
|
|
.get_voltage = tps65910_get_voltage_vdd3,
|
|
.list_voltage = tps65910_list_voltage,
|
|
};
|
|
|
|
static struct regulator_ops tps65910_ops = {
|
|
.is_enabled = tps65910_is_enabled,
|
|
.enable = tps65910_enable,
|
|
.disable = tps65910_disable,
|
|
.set_mode = tps65910_set_mode,
|
|
.get_mode = tps65910_get_mode,
|
|
.get_voltage = tps65910_get_voltage,
|
|
.set_voltage_sel = tps65910_set_voltage,
|
|
.list_voltage = tps65910_list_voltage,
|
|
};
|
|
|
|
static struct regulator_ops tps65911_ops = {
|
|
.is_enabled = tps65910_is_enabled,
|
|
.enable = tps65910_enable,
|
|
.disable = tps65910_disable,
|
|
.set_mode = tps65910_set_mode,
|
|
.get_mode = tps65910_get_mode,
|
|
.get_voltage = tps65911_get_voltage,
|
|
.set_voltage_sel = tps65911_set_voltage,
|
|
.list_voltage = tps65911_list_voltage,
|
|
};
|
|
|
|
static __devinit int tps65910_probe(struct platform_device *pdev)
|
|
{
|
|
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
|
|
struct tps_info *info;
|
|
struct regulator_init_data *reg_data;
|
|
struct regulator_dev *rdev;
|
|
struct tps65910_reg *pmic;
|
|
struct tps65910_board *pmic_plat_data;
|
|
int i, err;
|
|
|
|
pmic_plat_data = dev_get_platdata(tps65910->dev);
|
|
if (!pmic_plat_data)
|
|
return -EINVAL;
|
|
|
|
pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
|
|
if (!pmic)
|
|
return -ENOMEM;
|
|
|
|
mutex_init(&pmic->mutex);
|
|
pmic->mfd = tps65910;
|
|
platform_set_drvdata(pdev, pmic);
|
|
|
|
/* Give control of all register to control port */
|
|
tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
|
|
DEVCTRL_SR_CTL_I2C_SEL_MASK);
|
|
|
|
switch(tps65910_chip_id(tps65910)) {
|
|
case TPS65910:
|
|
pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
|
|
pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
|
|
info = tps65910_regs;
|
|
break;
|
|
case TPS65911:
|
|
pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
|
|
pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
|
|
info = tps65911_regs;
|
|
break;
|
|
default:
|
|
pr_err("Invalid tps chip version\n");
|
|
kfree(pmic);
|
|
return -ENODEV;
|
|
}
|
|
|
|
pmic->desc = kcalloc(pmic->num_regulators,
|
|
sizeof(struct regulator_desc), GFP_KERNEL);
|
|
if (!pmic->desc) {
|
|
err = -ENOMEM;
|
|
goto err_free_pmic;
|
|
}
|
|
|
|
pmic->info = kcalloc(pmic->num_regulators,
|
|
sizeof(struct tps_info *), GFP_KERNEL);
|
|
if (!pmic->info) {
|
|
err = -ENOMEM;
|
|
goto err_free_desc;
|
|
}
|
|
|
|
pmic->rdev = kcalloc(pmic->num_regulators,
|
|
sizeof(struct regulator_dev *), GFP_KERNEL);
|
|
if (!pmic->rdev) {
|
|
err = -ENOMEM;
|
|
goto err_free_info;
|
|
}
|
|
|
|
for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
|
|
i++, info++) {
|
|
|
|
reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
|
|
|
|
/* Regulator API handles empty constraints but not NULL
|
|
* constraints */
|
|
if (!reg_data)
|
|
continue;
|
|
|
|
/* Register the regulators */
|
|
pmic->info[i] = info;
|
|
|
|
pmic->desc[i].name = info->name;
|
|
pmic->desc[i].id = i;
|
|
pmic->desc[i].n_voltages = info->table_len;
|
|
|
|
if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
|
|
pmic->desc[i].ops = &tps65910_ops_dcdc;
|
|
pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
|
|
VDD1_2_NUM_VOLT_COARSE;
|
|
} else if (i == TPS65910_REG_VDD3) {
|
|
if (tps65910_chip_id(tps65910) == TPS65910)
|
|
pmic->desc[i].ops = &tps65910_ops_vdd3;
|
|
else
|
|
pmic->desc[i].ops = &tps65910_ops_dcdc;
|
|
} else {
|
|
if (tps65910_chip_id(tps65910) == TPS65910)
|
|
pmic->desc[i].ops = &tps65910_ops;
|
|
else
|
|
pmic->desc[i].ops = &tps65911_ops;
|
|
}
|
|
|
|
pmic->desc[i].type = REGULATOR_VOLTAGE;
|
|
pmic->desc[i].owner = THIS_MODULE;
|
|
|
|
rdev = regulator_register(&pmic->desc[i],
|
|
tps65910->dev, reg_data, pmic, NULL);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(tps65910->dev,
|
|
"failed to register %s regulator\n",
|
|
pdev->name);
|
|
err = PTR_ERR(rdev);
|
|
goto err_unregister_regulator;
|
|
}
|
|
|
|
/* Save regulator for cleanup */
|
|
pmic->rdev[i] = rdev;
|
|
}
|
|
return 0;
|
|
|
|
err_unregister_regulator:
|
|
while (--i >= 0)
|
|
regulator_unregister(pmic->rdev[i]);
|
|
kfree(pmic->rdev);
|
|
err_free_info:
|
|
kfree(pmic->info);
|
|
err_free_desc:
|
|
kfree(pmic->desc);
|
|
err_free_pmic:
|
|
kfree(pmic);
|
|
return err;
|
|
}
|
|
|
|
static int __devexit tps65910_remove(struct platform_device *pdev)
|
|
{
|
|
struct tps65910_reg *pmic = platform_get_drvdata(pdev);
|
|
int i;
|
|
|
|
for (i = 0; i < pmic->num_regulators; i++)
|
|
regulator_unregister(pmic->rdev[i]);
|
|
|
|
kfree(pmic->rdev);
|
|
kfree(pmic->info);
|
|
kfree(pmic->desc);
|
|
kfree(pmic);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver tps65910_driver = {
|
|
.driver = {
|
|
.name = "tps65910-pmic",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = tps65910_probe,
|
|
.remove = __devexit_p(tps65910_remove),
|
|
};
|
|
|
|
static int __init tps65910_init(void)
|
|
{
|
|
return platform_driver_register(&tps65910_driver);
|
|
}
|
|
subsys_initcall(tps65910_init);
|
|
|
|
static void __exit tps65910_cleanup(void)
|
|
{
|
|
platform_driver_unregister(&tps65910_driver);
|
|
}
|
|
module_exit(tps65910_cleanup);
|
|
|
|
MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
|
|
MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:tps65910-pmic");
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